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122022101220 = 223517119629511
BaseRepresentation
bin111000110100100010…
…1011000000011100100
3102122221221002222220020
41301221011120003210
53444400124214340
6132020045035140
711546551514145
oct1615105300344
9378857088806
10122022101220
1147827327758
121b794b55ab0
13b6780cc376
145c97b15acc
1532927819d0
hex1c691580e4

122022101220 has 48 divisors (see below), whose sum is σ = 361759644288. Its totient is φ = 30625154560.

The previous prime is 122022101219. The next prime is 122022101221. The reversal of 122022101220 is 22101220221.

It is an interprime number because it is at equal distance from previous prime (122022101219) and next prime (122022101221).

It is a super-2 number, since 2×1220221012202 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 122022101220.

It is not an unprimeable number, because it can be changed into a prime (122022101221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59813736 + ... + 59815775.

It is an arithmetic number, because the mean of its divisors is an integer number (7536659256).

Almost surely, 2122022101220 is an apocalyptic number.

122022101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122022101220 is an abundant number, since it is smaller than the sum of its proper divisors (239737543068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122022101220 is a wasteful number, since it uses less digits than its factorization.

122022101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119629540 (or 119629538 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 122022101220 its reverse (22101220221), we get a palindrome (144123321441).

The spelling of 122022101220 in words is "one hundred twenty-two billion, twenty-two million, one hundred one thousand, two hundred twenty".

Divisors: 1 2 3 4 5 6 10 12 15 17 20 30 34 51 60 68 85 102 170 204 255 340 510 1020 119629511 239259022 358888533 478518044 598147555 717777066 1196295110 1435554132 1794442665 2033701687 2392590220 3588885330 4067403374 6101105061 7177770660 8134806748 10168508435 12202210122 20337016870 24404420244 30505525305 40674033740 61011050610 122022101220